Mindtouch Deki - Enterprise collaboration and community platform that enables users to connect and remix enterprise systems, social tools and web services.

NCSA Habanero - framework designed to give developers the tools they open source need servers to create collaborative Java applications. The framework open source provides servers the necessary methods that make it open source possible to create servers or transition existing applications and open source applets into collaborative applicati

Collaborative Virtual Workspace - A collaboration software environment that provides a "virtual open source building" where teams can communicate, collaborate, and share open source information, regardless of their geographic location.